Rolling machine



@cih 3@ 11923.

A. PPLER ROLLING MACHINE Filed oct. 2s

1920 3 Sheets-Shet l @cih 30, i923.

A. EPPLER ROLLING MACHINE Filed Oct. 28 1920 3 Sheets-Sheet 2 VE/v ma 3Sheets-Sheet 5 EPPLER ROLLING MACHINE Filed oct; 28, 1920 /NVENTU/rl-Patented @et 39, i923.

ANDREW EPPLER, OF LYNN, MASSACHUSETTS, ASSIG'NOR T0 UNITED SHOE MA-CHINERY COR-PGRATIO-N, OE" PATERSON, NEVI JERSEY, A CORPORATION OF NEWJERSEY.

ROLLING MACHNE.

Application filed October 28, 1920. Serial No. 420,135.

To @ZZ whom t may concern.'

Be it known that l, ANDREW ErrLnn, a citizen of the United States,residing at Lynn, in the county of Essex and State of Massachusetts,have invented certain Improvements in Rolling li/lachines, of which thefollowing description, in connection with the accompanying drawings, isa specification, like reference characters on the drawings indicatinglike part-s in the several figures.

rlhis invention relates to rolling machines and is herein shown asembodied in a machine for rolling arctic uppers. c

Arctic uppers, according to one method of manufacture, are made up oftwo main parts, a vamp and a quarter, each part consisting of a seriesof layers of sticky material such as rubber, or textile materialimpregnated with rubber. These layers may consist for instance of fleecelining, friction fabric, stays and foxings, all of which are cementedtogether and rolled. rlhe vamp and quarter thus formed are then joinedtogether by stitching or otherwise to form a closed upper and a foningmay then be applied by rolling. ln rolling the layers forming the vampor the quarter through ordinary cylindrical rolls, the difficulty hasarisen that the material sticks to the rolls and is notproperly'delivered from them.

Another difliculty arises in rolling the foXing upon the closed upper,particularly at the heel portion. Although the cylindrical rolls mayserve to roll the toe portion of the upper, they will not serve to rollthe heel foring due to the peculiar surface at the heel end of theupper.

An object of the invention, therefore, is to provide improved rollingmechanism for pressing together layers of sticky material. ln accordancewith this feature, the invention comprises a pair of pressing rolls,guide rolls, and a belt looped around each pressing roll and one of theguide rolls to prevent the work from adhering to the pressing rolls. Inthe illustrative embodiment, there is a horizontal belt looped 'aroundthe lower pressing roll and about guide rolls at the ends or themachine, this belt acting both as a feed belt and as means to preventthe work from sticking 'to the lower roll. Another belt is verticallyarranged, passing about the upper pressing roll and about a guide rollwhose position may be changed so that the operator may convenientlyreach the work as its hold on the belt is broken by the guide roll.

Another object is to provide improved mechanism for rolling the closedupper, as at the heel end when foxing is applied. In accordance withthis feature, the invention comprises a pair of frusto-conical pressingrolls constructed and arranged to roll closed work of irregular contour,and means for driving the rolls.

Other features and advantages will appear from the following descriptionand accompanying drawings, in which- Fig. l is a front elevation, partlybroken away, and partly in section of the rolling machine,

Fig. 2 is an end elevation looking toward the left of Fig. l,

F ig. 3 is a top plan view.

The frame comprises a casing or stand which carries an upper pressingroll 12 and a lower bodily movable pressing roll 14.

which is actuated by a treadle. A wide belt 16, preferably of canvas, islooped about the lower pressingroll and about guide rolls 18 and 2O ofcomparatively small diameters secured tobrackets 22 at the ends of themachine. This belt acts as a feeding belt and also as means to preventthe sticky work from adhering to the lower pressing roll. It also passesaround an idler roll 24 and about a belt tightening roll 26 mounted onan arm 30 pivoted to the pins 28 and pressed upwardly by a spring 32. Tosecure a frictional drive of the belt, the lower roll 14 is movablymounted on a forked arm 34 pivoted at 36 to the framework and pressedupwardly by a coiled spring 38 which bears at one end on the adjustingscrew 40 and at the other end against the arm. To depress this roller 14to stop the belt, the forked arm 34 is joined by a rod 42 to the treadle44 pivoted at 46 to a bracket. Depression of the roll not only carriesit away from the upper run of the belt but also serves to tighten thebelt to aid in stopping the latter. In rolling flat pieces of work, theoperator ordinarily stands at the right end of the machine as viewed inFig. l but flat pieces or cylindrical pieces of work may also bemanipulated from the front of the machine. To provide for stopping themachine when working in this latter position, another treadle 48 may bepivoted to the framework to over- .'lie the rst treadle 44 and thus bemanipu- .zio

lated to lower the pressing roll. Y

The upper roll 12 is mounted loosely on a shaft 50 which is normallyfixed in a bearing bracket 52 and the roll is driven by a sprocket 54connected by `a sprocket chain 56 to another sprocket 58 drivenfrom amotor. The sprocket 58 is mounted on the end of a shaft 60 having a wormwheel 62 meshing with 'awormr 64 extending from the motor 66. The wormand worm gear may be housed within the shield 68 which is pivoted on theshaft 60 to aid in alining the motor shaft and motor.

To prevent sticky work from adhering to the upper pressing roll 12, asecond belt 70 is looped about the roll and about a sectional' guideroll comprising a shaft 72 having a series of rollers 74. The spacesVbetween the rollers allow kthe belt to sag somewhat at intervalsso thatit is no longer flat and this breaks thehold of the sticky work. Thisshaft and the rollers are supported by a cross bar 76 having projectionsfitting between the rollers and against intermediate portions of theshaft. The bar 76 is carried by pins 78 slidable in hollow bosses 82, 82on ythe bracket 84 and spring pressed upwardly to tighten the belt bysprings 80 mounted in Vthc hollow bosses. The bracket 84 extends betweenthe two runs 'of the belt and projects outwardly at one side'of the beltwhere it is formed with an integral gear housing 86k and with aprojecting portion which can be secured as by a set screw tothe shaft50. The shaftV 50 extends through a bushing 88 in a split bearing whichcan be clamped together by the bolts 90, this clamping action alsoserving to fix `the bracket 84 and the parts carried thereby indifferent angular positions. e

F or rolling closed work having an irregular' surface, such as the heelend of a closed upper, Vthere are provided a .lower drivenAfrustoconical roll 100 on 'the projecting end of the shaft 50 and an.Vupper frusto-conical roll 102 mounted loosely on a projecting shubshaft 104. Both rolls may haveV a rubber covering and are held on theirshafts by suitable washers 106 and s crewskthreaded into theends of theshafts. Vlfhe lower roll 100 is driven through the following gearconnectionsV fromv the sprocket 54. A gear 108, secured to the sprocket54, meshes with a gear 110 mounted on the inner end ofa short shaft 112in the framework. Another gear 114on the outer end of thisl shaftlmesheswith a gear 116 secured to the 'hub of the roll 100. The

vupper roll `102 is driven by friction and it can be raised `and loweredto permit insertion or removal of the closed work. For raising the upperroll 102, the latter is mounted in a bracket 118 formed on the end of abent lever 120 pivoted at 122 to the framework., The lever has a lowerarm 124 lying in the path of a lug on the'v bell crank lever 126 pivotedat 128 to the frame and connected by a rod 130 to a treadlev 182. Topress the upper roll 1021 yieldingly against the lower roll to provide africtional driving engagement, a spring 136 is interposed between theend of a sliding rod 134 and the framework, the otherend of the rodbeing connected adj ustably to the lower arm 124 of the lever. Thisconnection comprises a hand wheel 134 which is threaded on the end ofthe rod and which bears against the lower arm 124 of the lever. Thishand wheel can be4 turned to adjust the tension of the spring 136 andthus adjust the pressure between the rolls.

ln rolling fiat pieces, such as the layers composing the vamp orquarter, the operator may stand at the right of the machine and placethe work upon the belt 16. VThe belt 16 feeds the workV between thepressing rolls and if the work adheres to the belt 16, it will becarried as far as the roll 20 where its hold on the belt will be broken.lf, however, the workadheres to the: belt 7 0 Vit will be carried up asf'ar as ythe sectional guide roll 72, 74 where its holdwill be broken.The operator may remove the work at this point and, if desired, hemay-also swing the sectional guide roll 72, '74 about the yaxis of theroll 12 to bring the belt into a more convenient position. Flat piecesof work ork pieces of closed work such'asthe toe endv one standing nearthe ends of the cylinn drical rolls to roll the ytoe end of a closedupper and the other standing near the ends of the conical rolls toreceive thework from the first operator andvroll theheel foxing.Y Havingthus described my vinvention,

what I claim as new and desireto secure by Letters Patent of the'UnitedStates is :V

1. ln ay machine of the class described, a presser roll, two` guiderolls each"of'snfialler diameter than that of the presser roll, a beltpassing aroundthe three rolls with one ofY its runs'substantiallystraightV and iny con-v tact with the three rolls, means forv drivingthe presser roll, a second presserroll arf ranged in opposition tothefirst presser'roll, a guide roll of small diameter associated with thesecond presser roll, va belt passing around the second presser and guiderolls,

rse

.and yielding means for urging the presser no o rolls toward each other.

2. In a machine of the class described, a pressing roll, a guide roll, abelt looped around the pressing roll and the guide roll, and means tochange the location of the guide roll to vary the position of the belt.

3. In a machine of the class described, a pressing roll, a bracketmounted to swing about the axis of the roll, a guide roll carried by thebracket, and a belt looped around the guide roll and the pressing roll.

4. In a machine of the class described, a pressing roll, a bracketmounted to swing about the axis of the roll, means to secure the bracketin different angular positions, a guide roll carried by the bracket, anda belt looped around the guide roll and the pressing roll.

5. In a machine of the class described, a pressing roll, a bracket, aspring pressed bar carried by the bracket, a guide roll jour. naled inthe bar, and a belt looped around the guide roll and the pressing roll.

6. In a machine of the class described, a pressing roll, a guide roll,and a belt looped about the rolls, said guide roll being formed insections to break the hold of the work that sticks to the belt.

7. In a machine of the class described, a pressing roll, a guide rollcomprising a shaft and a series of rollers mounted on the shaft, a barfor supporting the shaft and having a series of projections to supportthe shaft between the rollers, and a belt looped about the pressing rolland the guide roll.

8. In an upper rolling machine, a pressing roll, a pair of guide rolls,a -belt looped around the pressing roll and the guide rolls forfrietional driving engagement with the pressing roll, and means formoving the pressing roll to tighten the belt and stop its motion.

9. In an upper rolling machine, a fixed shaft, a driven roll looselymounted on each end of the fixed shaft, a co-operating roll mounted forfrictional drivingy engagement with each driven roll, a treadle adjacenteach co-operating roll to withdraw it from engagement with its drivenroll, and gearing for driving the rolls.

l0. In an upper rolling machine, a fixed shaft, a driven cylindricalroll loosely mounted on one end of the fixed shaft, a second cylindricalroll for co-operation with the first roll in rollingthe toe end of aclosed upper, a driven conical roll mounted on the other end of thefixed shaft, a second conical roll for co-operation with the firstconical roll in rolling the heel end of the closed upper, and gearingconnecting the driven rolls for driving them together.

1l. In a machine of the class described, a pressing roll, a guidemember, and a belt passing around said roll and member, said memberbeing formed with alternate projections and depressions whereby the beltas it passes around said member will sag in the localities of thedepressions and thereby break the hold of a piece of tacky sheetmaterial which is being carried around by the belt.

In testimony whereof I have signed my name .to this specification.

ANDREW EPPLER.

